Home / 8,169.12-12,254.40-2,622.96

Finding the Fourth Proportional to 8,169.12, 12,254.40 and 2,622.96

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Solution

The fourth proportional to 8,169.12, 12,254.40 and 2,622.96 is: 3,934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.12 : 12,254.40 = 2,622.96 : x
  2. Step 2: Convert to fraction form
    8,169.12/12,254.40 = 2,622.96/x
  3. Step 3: Cross multiply
    8,169.12x = 12,254.40 × 2,622.96
  4. Step 4: Simplify right side
    8,169.12x = 32,142,801.02
  5. Step 5: Solve for x
    x = 32,142,801.02/8,169.12
  6. Step 6: Final answer
    x = 3,934.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.